var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
//引入router模块
var studentsRouter = require('./routes/students');
var testPaper = require('./routes/testPaper')
//登录模块
var logindlRouter = require('./routes/logindl');
var registRouter = require('./routes/regist');
var amendRouter = require('./routes/amend');

let collectionRouter = require('./routes/collection');

let testdeRouter=require('./routes/testde')
let xgstudent=require("./routes/xgstudent")

//引入mongoose的连接文件
require('./until/mogoose')


//配置跨域问题



var app = express();


// 设置 CORS 允许跨域
var allowCrossDomain = function (req, res, next) {
  // 设置允许跨域访问的请求源（* 表示接受任意域名的请求）   
  res.header("Access-Control-Allow-Origin", "*");
  // 设置允许跨域访问的请求头
  res.header("Access-Control-Allow-Headers", "X-Requested-With,Origin,Content-Type,Accept,Authorization");
  // 设置允许跨域访问的请求类型
  res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
  // 同意 cookie 发送到服务器（如果要发送cookie，Access-Control-Allow-Origin 不能设置为星号）
  res.header('Access-Control-Allow-Credentials', 'true');
  next();
};
app.use(allowCrossDomain);





// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));




app.use('/', indexRouter);

//设置令牌
// var jwtAuth=require('./until/jwt');
// //进行身份验证，在一级路由之前进行添加
// app.use(jwtAuth);

app.use('/users', usersRouter);
//使用模块

app.use('/students', studentsRouter)
app.use('/testPaper', testPaper)
app.use('/collections', collectionRouter)
app.use('/logindl', logindlRouter)
app.use('/regist', registRouter)

app.use('/tested', testdeRouter)
app.use('/amend', amendRouter)

app.use("/xgstudent",xgstudent)


// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});
//登录使用


// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
